Improvement in attaching knobs to the spindles of door-locks



UNITED STATES PATENT OFFICE.

WALLACE T.- MUNCEE, CE BEANEOED, CONNECTICUT, AssICNoE To THOMASKENNEDY, oF SAME PLACE.

IMPROVEMENT lN ATTACHING KNOBS T0 THE SPINDLES 0F DOOR-LOCKS.

Specification forming part of Letters Patent No. 7 l ,502, datedNovember 26, 1867.

be a full, clear, and exact description ot the same, and which saiddrawings' constitute part of this specification, and represent, in-

Figure 1, the knob as attached to the door,

the rose being shown in section 5 and in Figs.

2, 3, 4, 5, and 6 detached views to illustrate' the construction andoperation.

This invention relates to an improvement in the attachment of knobs totheir spindles, whereby they may be nicely adjusted to any thickness ofdoor; and to enable others to con# struct my improvement, I will proceedto describe the same as illustrated in the accompanying drawings.

A represents the door; B, the lock; C, the knob to which the spindle isrmly fixed, and D the other knob, the spindle E extending through andfrom knob to knob in the usual manner, ixed firmly to the knob C, and athread cut upon the other end to lit into a corresponding thread in theneck F ofthe knob D. The neck F is formed with a shoulder, a., and overthe spindle is placed a collar, d, having a corresponding shoulder, j',so that when the collar is set over the spindle, as seen in Figs. 2 and6, the shoulder of the neck and the shoulder of the collar will ttogether, as s een in Fig. l. The said collar slips freely ontothespindle,

land after the spindle has been inserted through the door and the collard placed thereon, a plate, G, is set over the collar having an openingeccentric to its own center for the purpose, as seen in Figs. 3 and 6,and from the said eccentric opening a slot is formed narrower than thediameter of the collar to the center of the said plate G, as seen inFigs. 3 and 6, so that when placed over the collar d, as seen in Figs. 2and 6, and the collar raised, the said plate 'Gr may be slipped underthe collar cl around the shank or smaller diameter g ot' the collar, asseen in Fig. 1 and denoted in red, Fig. 3, the collar being seen in Fig.5.- After the collar d and plate G have been placed in the position asdenoted in Figs. 2 and 6, then screw the knob D onto the spindle, asnear down to the collar as possible; then raise the collar so that itsshoulder will lock onto the shoulder of the vneck of the knob, as seenin Fig. 1; then slide the plate G under the collar, as seen in Fig. 1,to hold it in that position, and thus prevent the re-turning ot' theknob until the plate G shall have been removed, so as to permit thecollar d to be removed to unlock the Shoulders. The plate G is coveredby the rose H, as seen in Fig. l, and the screws through the rose serveto hold the plate G.

By this construction and arrangement the objection to the commonsecurity by a screw is entirely overcome, and the knob is secured in themost perfect manner and easily adj usted without the intervention of theinconvenient washers generally used.

Having thus fully described my invention, what I claim as new anduseful, and .desire to secure by Letters Patent, is

The combination ot' the collar d with the neck F of the knob, providedeach with corresponding shoulders, arranged and combined with the plateGr so as to operate to secure the knob, substantially in the manner asherein set forth.

WALLACE T. MUNGER.

Witnesses J. R. WAssoN, J. H. BABcoCII.

